Technical Engineering

Seismic Response Modification Coefficient

Factor that reduces seismic load effects to strength level.

Sideway Buckling

Limit state of lateral buckling of the tension flange, opposite the location of a concentrated compression force.

Simple Lip

Single plate elements used to stiffen a compression flange.

Site Class Definition

A classification assigned to a location based on the types of soils present.

Stability

Condition reached in the loading of a structural component, frame or structure in which a slight disturbance in the loads or geometry, does not produce large displacements.

Stiffness

Resistance to deformation of a member or structure, measured by the ratio of the applied force (or moment) to the corresponding displacement (or rotation).

Stored load

A maximum load of pallets and products stored on racks.

Stress

Force per unit area caused by axial force, moment, shear or torsion.

Structural System

An assembly of load-carrying components that are joined together to provide interaction or interdependence.

Stub Column Test

Concentric compression testing of members, not affected by column buckling, used to determine the column effectiveness.

Torsional Buckling

Buckling mode in which a compression member twists about its shear center axis.

Torsional-Flexural Buckling

Buckling mode in which compression members bend and twist simultaneously without change in cross section shape.

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